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model 2000 DeviceNet Module Manual (DN611/DN611A)
Chapter 4 Operating Procedures for the DN611 (Software)
4
4.3.4 Parameter setting request (Slave devices)
(1) Function
This request is used to set slave devices parameters in the DN611 scan list. This
request can be issued only when the DN611 is in standby mode.
Up to 10 salve devices can be set per parameter setting request. As the set slave
devices parameters are stored in the non-volatile memory of the DN611, it is not
necessary to execute this request each time power is switched on unless the slave
devices configuration is changed. When the slave device parameters in the non-
volatile memory are identical with the slave device parameters newly requested, the
requested parameters will not be written in the non-volatile memory.
If the slave device configuration is changed, delete the slave device parameters from
the non-volatile memory, then register new slave device parameters.
Slave device parameters can be set in the non-volatile memory of the DN611 up to
300 times.
(2) Diagrammatic representation (Function block)
(3) Description of operation
(a) When REQ input is TRUE, the slave device parameter setting request for the
module specified by CH, UNIT, and SLOT is processed.
(b) PARA_SLAVE is explained in the next item.
(c) After processing the slave device parameter setting request, DONE is turned TRUE.
(d) If the slave device parameter setting request is not completed in a specific time (4
seconds per slave device x No. of slave devices) due to an error or the like, ERR
and DONE are turned TRUE.
(e) Completion status is output to STATUS.
(f) If REQ is FALSE, both DONE and ERR turn FALSE.
(g) When this function block is started (when REQ is turned TRUE), keep REQ
TRUE till DONE becomes TRUE.
Input Argument Output Argument
REQ BOOL type Execution enabled DONE BOOL type Completed
CH WORD type Channel No. ERR BOOL type Error
UNIT WORD type Unit No. STATUS WORD type Completion status
SLOT WORD type Slot No. For description of completion status, see
Section 4.5.
N WORD type No. of devices
requested
PARA_
SLAVE
Structural
data type
Slave device
parameter set values
DN_SLAVESET
CH
REQ
DONE
UNIT
ERR
SLOT
PARA_SLAVE
STATUS
N
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